Photographic-printing apparatus.



W. 0. HUEBNBR. PHOTOGRAPHIG PRINTING APPARATUS.

APPLICATION FILED MAY 18, 1910 1,058,975. Patented Apr. 15, 1913.

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W. C. HUEBNER,

PHOTOGRAPHIG PRINTING APPARATUS. APPLICATION FILED MAY 18, 1910.

1,058,975. Patented Apr. 15,1913.

3'SHEETS-SHEET 3.

A UNITED STATES PAT NT OFFICE.

wmmur o. Hosanna, or BUFFALO, NEW YORK, assrenon or ONE-HALF 'ro enema minimum, or BUFFALO, NEW YORK.

PHoToomnIe-rnmrmc; APPARATUS.

Specification of Letters Patent.

Application flied May 18, 1910. Serial No. 561,979.

T 0 all whom it may concern:

Be it known that L'lViLLlAM C. HUnBNnR, a citizen of the nited States, residing at Buffalo, in the county of Erie and State of New York, have.invented a new and useful Improvement in Photographic-Printing Apparatus, of which the following is a specification.

This invention nelates'to apparatus of the general character disclosed in U: S. Patents Nos. 954,291 and 954,292, dated April 5, 1910, Huebner & Bleistein, which apparatus is designed for producing photographic prints upon the sensitized surfaces of plates of'metal or other material, or lithographic stones, which are afterward finished for printing in one or more colors. The apparatus of these patents comprises a holder for the sensitized plate or stone, a light chamber carrying a transparent printing plate, which maybe a positive or a negative,

I and which plate is pressed against the ensitized surface, and a back support or pressure device which bears against the rear side of the sensitized plate or stone, thereby producing a close contact of the negative or positive printing plate with the sensltized surface. I

In Patent. No. 954,291 the light chamber and the back support are adjustable parallel with or along the sensitized surface for 1 placing the printing plate against any desired part of the sensitized surface upon which the print is to be made or for repeating such prints upon said surface in predetermined positions. In Patent No. 954,292 the holder which carries the sensitized plate or? stone is adjustable for the same purpose between the light chamber and. the back support in a direction parallel with the sensitized surface. In each of these two styles of apparatus the adjustable parts are adjustable in two directions at right angles to each other for reaching the r the apparatus by making-the holder for the sensitized-plate or stone and also the light chamber and back support adjustable, each 'inone direction only, for instance the holder in a horizontal direction and the light chamber and back support in a vertical direction" In the accon'ipanying drawings, consisting of three sheets: l igure l is a front clcyation of a photographic printing apparatus support.

ings is intended for holding a tlun sensitized embodying the invention. Fig. 2 is a transverse sectional elevation thereof in line 2-2, Fig. 1. Fig. 3 is a horizontal sectional plan. thereof in line 3-3, Fig. 1.

Like reference characters refer to like parts in the several figures.

The stationary main frame A of the apparatus may be of any suitable construction and supports on opposite sides the light chamber and the back support or pressure de'vice, whichface each other. The main frame also .contains means for supporting a metal plate B, lithographic stone or other part having a sensitized surface, between the light chamber and the back support in such manner that the light chamber? is adapted to hold the transparent negative or positive printing plate 0 against the sensitized surface, while the back supportis adapted to bear against the rear-side of thesensitized part and press the same firmly against the printing plate on the light chamber.

The main frame shown in the drawings comprises a rectangular upright central frame a which contains the holding means for the sensitized part, and two sideframes c a'-, one supporting the light chamber and the other the back support. The upright central frame a consists of upright end posts connected by longitudinal top and base pieces, and a horizontal track bar a which connects the end posts above the base piece. The side frame in which the light Eliamber is mounted is composed of parallel upright pieces connected at their upper and lower ends to the top and base pieces of the central fran'ie aml connected by oblique braces a to the ends of the central frame. The side Patented Apr. 15, 1913.

frame in which the back support is mounted is similarly composed of parallel upright pieces connected at top and'bottom with the central frame by oblique braces w'.

- The holder for the sensitized plate or'part ma y be of any suitable construction-adapted to support a plate, stone or other part having a sensitized surface, in an uprightposition between the light chamber and the ba k The holder shown in the draw metal plate or sl'icctand, for brevity, will hereinafter he termed the-plate holder. It (-on'ipriscs an open rectangular frame D providcd with ,nppcr and lower holding devices or clamps (l and d of any suitable construction which'are adapted to grip and hold the upper andlower edges respectively or" the sensitized plate. The clamps are carried by bars (l and (2, respectively, which are si-- multaneously adjusted away from and toward each other in the plate holder frame D for stretching or straightening out and slackening the sensitized plate in the holder by vertical screws 03 and ti which are journaled in suitable hearings on the ends of the frame D and have oppositely pitched threads working in threaded holes in the opp'o'site ends of the two clamp bars. These screws are simultaneouslyrotated by a hor- 5 izontal shaft E journeled orithe lower p0rtion of the plate holder frame I) and connected with the screws by bevel wheels 6 and c, and with an operating crank shaft 0 by bevel wheelse Fig. 2.

The plate holder D is mounted in the -Inain frame so that it can be adjusted horizontally between the light chamber and the back support in a plane parallel with the sensitized surface, or at right angles to. the

2 axis of the light chamber. As shown, the

lower edge of the plate holder frame D is V- shaped and is adapted to slide in a correspondingly .ooved track or guide F located in a channe in the track bar a of the main frame, and the frame is provided at 1 181301) with in s] f f adapted to slide on a horizontal gui .e rod at the upper part of the T e track F is adjusted 'vertic 11 right centre portion of the main "frame. ally 1n the 3 track bar a by screws 7 to take up Wear and prevent loose'ness of the plate'holder in its guides." I

- The plate holder is adjusted horizontally by upper and lower horizontal adjusting 40 screws Grand G which are journaled in.

beatings in the u right central frame a and etorlc in threadet parts 9 and g on the. upper and. lower parts of the plate holder frame-D, The bottom bar of the frame 1) is 5 cdhvenlently made hollow for the passe e with a hand wheel g, or with other means,

for turning it,

The plate holder can be c- "tructed so as to properly hold the sensitized part, and mounted soas to be adjustable in a plane parallel with that of the sensitized platein other ways, and other meanscan be emplo' ed, for adjust-in it I represents the light chamber and I the back support or pressuredevice, which are arranged facing each other on opposite sides of the sensitized-plate B. The light chan'iher is mounted to I'nove toward and from the plate holder for. placing the printlug plate 0 against and removing it from the sensitized surface of the plate B, and so that the light chamber can. also be adjusted vertically parallel with the sensitized surface! The back supportor' pressure device is likewise mounted so that it can be moved to ard and from the sensitized plate B and car. also be adjusted vertically parallel with the sensitized plate.

The invention is not concerned with the particular construction of the light'chambe!" and back support or pressure device and they may be of any suitable construe-f lion. o

The light chal'iibcr ll shown in the draw lugs is provided with suitable electrical illmninating devices it and has a transparent face plate h on which the transparent negative or positive printing plate C is so cured by suitable means (not shown).

The back support or pressure device I shown consists'of a hollow body or frame provided with a padded pressure hack 2' adapted to bear against the rear side of the sensitized plate ll for pressing the same squarely tgainst the printing plate CI ln the construction shown, the light chainher H is mounted to move horizontally toward and from the-sensitized. plate in a rectangular carrying frame or carriage K which is.adjustable vertically on the side frame o. Qhe lightchamber has guide lugs 7a which slide on horizontal guide rods secured in the carriage and is moved toward and from the sensitized plate by a screw k swi veled in a yoke on the light chamber and-working in a threaded hole in a yoke or cross-bar k on the carriage K, the screw being provided with a hand Wheel 7c? for turning it.

The light chamber carriage K is provided at opposite sides with tongues or ribs lwhich slide invertical guide-Ways L on the side pieces of the side frame a and is adjusted vertically in these ways by vertical screws M whicl'i join-holed in bearings Tm on. the side frame a and engage screwthreaded lugs m onthe opposite sides of the carriage K. The adjusting screws M are caused to turn togetherby a horizontal shaft m suitably journuled in the lower portion of-the side frame a and connected to the screws M by bevel wheels This shaft m? can be turned byany suitable means, but it is preferably rotated by the'means hereinafter described.

The back support is mounted in a similar manner to move horizontally toward and from the sensitized plate in a carrying frarne or carriage N which is ad'ustable vertically on. the side frame a. The back support slides horizontally on guide rods non the carriage and is moved by a screwa working in a threaded hole in a yoke n of the carriage, the screw being provided with a hand wheel a for turning it. The carriage N is provided at opposite sides with tongues a which slide in vertical guideways 0 on the side frame (1, and is adjusted vertically by vertical screws P, which are turned together by a horizontal shaft 72 journaled in the lower portion of the side frame a and connected to the adjusting screws P by bevel wheels 20. This shaft 39 is preferably provided at one end with a hand wheel p for turning it and is connected by bevel wheels g, Figs. 1 and 2, to a transverse horizontal shaft Q, which is connected by bevel wheels 9 to the shaft m" which connects the adjustingscrews M for the light chamber carriage. Thus the ad justing screws M and P for both the light chamber and the back support carriages are rotated simultaneously by turning the hand Wheel gr, and the two carriages are simultaneously and correspondingly adjusted vertically, the light chamber and back support being thereby always maintained in' the same relation to each other while being adjusted vertically relative to the sensitized surface.

The light. chamber and back support could be mounted so as to be adjustable vertically and movable horizontally toward and from the sensitized plate in other ways andother suitable means for thus adjusting and moving the parts could be employe/ By mounting the plate holder so as to be adjustable in one direction, for instance horizontally, parallel with the sensitized surface, and mounting the light chamber and the back support so as to be adjustable in a different direction, for instance vertically, parallel with the sensitized surface, as explained, any desired portion of the sensitized surface can be placed between the light chamber and the back support for printing thereon iii the same manner as if the sensitized plate were adjusted both horizontally and vertically between the light chamber and back support. I

In using the apparatusfor producing a print upon a sensitized surface, the light chamber is adjusted so to place the transparent printing plate in close contact with the sensitized. surface and the back support is adjusted to bear against the rear side of the sensitized plate or part. If it is desired to produce. a plurality of like prints upon the sensitized surface, this is readily done by shifting the plate holder, or the light chamber and the back support, or all three, after every exposure so as to bring different portions of the sensitized surface successively between the light chamber and back support. If it is desired to provide several plates with prints for printing in different colors, the plates are successively exposed, the adjustable plate holder, light chamber and back support enabling these parts to be readily usted so as to produce the prints in corresponding or registering positions on the several plates.

Suitable scales and pointers or indicators may be provided. for indicating the position of the adjustable parts.

By providing the plate holder, the light chamber and the back support, each with an adjustment in one direction only the adjust ing mechanism is greatly simplified.

I claim as my invention:

1. The combination with a stationary frame, holder for a part having a sensitized surface, means for adjusting said holder in said frame in one direction in a plane parallel with said sensitized surface, a light chamber adapted to carry a photographic printing plate and adjustable in said stationary frame in a plane parallel with said sensitized surface, and means for adjusting said light chamber in said frame in a direction at right angles to the direction in uhich said holder is adjustable, substantiallyxis set fort-hi 2. The combination with a stationary frame, a holder for a part having a sensitized surface, means for adjusting said holder in said frame in one direction in plane parallel with said sensitized surface, a light chamber adapted to carry a photographic printing plate and a back support, both adjustable in said stationary frame in planes parallel with said sensitized surface, and means for adjusting said light chamber and back support in said frame in a direction at right angles to the direction in which said holder is adjustable, substantially as set forth.

\Vitness my hand, .this lthilay of May,

- WILLIAM C. I-IU'EBNER.

Witnesses C. B. HORN'BEGK, E. A. VOIQK.

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